Transesterification of Refined Sunflower Oil to Biodiesel Using a CaO/ZSM-5 Powder Catalyst

Eliane Dahdah, Jane Estephane, Lena Moussa Chalouhi, Safa Sammoury, Bilal El Khoury, Cedric Gennequin, Edmond Abi-Aad, Samer Aouad

Research output: Contribution to journalArticlepeer-review


The production of biodiesel from refined sunflower vegetable oil over basic CaO/ZSM-5 catalysts was investigated. Several catalysts with various loadings of CaO on ZSM-5 were prepared, calcined at 800 °C, and characterized by N2 adsorption-desorption, X-ray diffraction, Fourier transform infrared spectroscopy, and CO2-temperature-programmed desorption techniques. Calcined catalysts were tested in the transesterification reaction and reaction conditions were optimized by varying the catalyst-to-oil ratio and reaction time. The most active catalyst was the CaO/ZSM-5 catalyst with a 35 wt % loading which gave the highest fatty acid methyl ester yield. The high catalytic activity was attributed to the active basic sites generated following CaO addition. Furthermore, the catalyst demonstrated stability against the leaching process.

Original languageEnglish (US)
Pages (from-to)51-57
Number of pages7
JournalChemical Engineering and Technology
Issue number1
StatePublished - Jan 2022


  • Biodiesel
  • Calcium oxide
  • Transesterification
  • Vegetable oils
  • ZSM-5 catalyst

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering


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